meross Smart Dimmer Switch Single Pole Supports Apple HomeKit, Alexa Google Assistant & SmartThings, 2.4Ghz WiFi Light Switch for Dimmable LED, Neutral Wire Required, Remote Control Schedule, 1 Pack 1 Standard Size

I bought a couple of these dimmers back in 1/2021 and was initially pretty satisfied with them. The dimming functionality wasn’t quite as granular as I would like (for instance, they seem to dim in increments of 20-25%, so there’s only 4-5 levels of dimming, which means you can’t cleanly go to say, 10%; it’s more like four 20% jumps down, then OFF), but for the price, I could live with it. Then, about late Feb or early-Mar I would come downstairs in the morning to find that one, or perhaps both, of the dimmers had turned on overnight. I have no automation that runs in the middle of the night, and I have an app that can log HomeKit events, but nothing was logged for the switches while we slept. But when I tested logging events from these devices using HomeKit automation or manual control, the events appeared. TBH, I was a little concerned our home automation was getting hacked. So I contacted Meross support to see whether they could resolve the situation. They told me the best thing to do would be to reset the switches and re-add them to HomeKit. Really? That’s a horrible user experience. Here’s what you have to do: rename the old existing instances of the switches in HK, reset the physical switches, then re-add the now blanked switches back into HK, then visit each scene/automation you have operating on the (now zombie), original instances, remember to remove the original instances from each scene/automation, then, when you’re sure you’ve applied all the same scenes/automations to the new switch instances, only then can you remove the zombie switches. Oh, and after all that, it’s a good thing to go through and test each switch to make sure you’ve got the switches, scenes, and automations connected correctly. It’s a little bit like living the “Spock’s Brain” episode of Star Trek: you know, where Spock’s brain is stolen by an alien, then Kirk has to steal it back, and Bones has to do a Vulcan mind-meld with Spock’s brain in order to implant Spock’s brain back into Spock’s body? But in this situation, you have to play Kirk, Bones, and Spock! So rather than recreate the episode of Spock’s Brain, I decided to do what I should’ve done in the first place: get Lutron Caseta dimmers. I already had one Lutron Caseta in my home to control a ceiling fan, and it has been absolutely no muss/no fuss. It never loses its connection. It’s always quick to respond. Sure, they’re more expensive, but this is a situation where you get what you pay for. And my hourly rate is pretty high, so getting home automation components that don’t require a lot of monitoring and tweaking actually saves me $$ in the long run because I can use that time to, you know, get paid for doing the work? So take it from me and Spock’s Brain, just spring for the more expensive, more reliable alternative; otherwise it might be you who’s ready to rip out your own brain.Read more

This dimmer switch is rather straight forward to setup/wire. The only tools needed were a screw driver (to take the wall plate and old switch off, and replace) and a multi-meter (to determine which black wire is the Line In). From a physical design perspective, you will need to keep in mind that this switch is a little larger in the back than other dimmers, so you may need to squeeze your wires a little deeper into the box than with other dimmer switches. As for the app setup, it was easy. Once the wires are correctly connected you simply open the Meross app and step through the basic process and then switch to the wifi selection to pick the _SW_ wifi network, which iOS will then figure out that the device is a Home product. The one part of the setup that is a little annoying is that when you get back to the Meross app to add it to your list, there isn’t a way to exit the walk-through and need to use the back button multiple times to get to the add device once you were already in the process. Once added to Apple Home and the Meross app (important part), then you can go into Google Home and add a device and refresh your Meross device list. Now you can control the device easily using either Siri or Google! I really like that I can say a command like “Hey Google, turn my living room light to 10%” rather than just turning the light on and off. The integration is priceless for my lazy / couch-bound style while I’m watching TV! :)Read more

Wasn’t expected made of cheap plastic, worse is the Meross app wasn’t able to connect, other lights product working fine though. Apple Home Kit works fine so at least I can use it to control the dimmer. For the dimmer, once set it to lowest and turn it off, when turn the light on next time, light didn’t on until increase the setting. Wasn’t impressed, unfortunately it passed the return deadline.Read more

These dimmers have been a disaster in our renovation project. HomeKit functionality is unreliable, but the worst thing is that they turn themselves on in the middle of the night (with or without HomeKit). The first night our toddler woke us up crying because his light came on at full brightness at 3am. The dinner functionality when it works gives only 3-4 brightness settings. For about 1/3 of our lights it doesn’t work at all. Now we’re going to have to pay an electrician to pull all of these and replace them with more expensive switches. Save yourself the trouble…just buy the more expensive ones.Read more

I installed this to control recessed lighting on our front porch. Found that at all except for the very minimum or maximum brightness, the lights flickered constantly. Perhaps not enough resistance in the switch to smoothly dim at the other power levels.Read more